The panelists will address “how top entertainment and digital advertising creatives tell stories and build brands across multiple platforms,” the NAB said. “Speakers will share their approach to designing rich, fictional worlds; shaping content for specific media; and enhancing interactivity and audience engagement.”

The panel is scheduled for Tuesday, April 13 from 4 to 5 p.m.

Alexander was an executive producer for the first three seasons of NBC’s “Heroes,” earning him an Emmy for online content. He was also executive producer of “Alias,’ and co-executive producer for the first season of “Lost.”

Askwith is director of strategy at Big Spaceship, where he specializes cross-platform presentations. Game designer Elan Lee “is considered one of the originators of the Alternate Reality Game genre and has more than a decade of transmedia experience,” the NAB said. Lee is founder of the company behind the “Nine Inch Nails: Year Zero” promo campaign.

Mike Monello was one of the creators of “The Blair Witch Project,” and Sander is executive producer and director of “Ghost Whisperer” on CBS.